A069331 Number of 9 X n binary arrays with path of adjacent 1's from upper right corner to lower left corner.

1, 1681, 1332456, 804230945, 424660442975, 207204257344200, 95972872569551099, 42856467943438387389, 18633578769242938930634, 7941841818960714166446386, 3334133239588212397398261473, 1383615906056315517856514817504, 569069897400777230243560762294416

Offset

1,2

Links

Table of n, a(n) for n=1..13.

Crossrefs

Cf. 2 X n A048739, 3 X n A069325, 4 X n A069326, 5 X n A069327, 6 X n A069328, 7 X n A069329, 8 X n A069330, 10 X n A069332, 11 X n A069333, 12 X n A069334, 13 X n A069335, 14 X n A069336, 15 X n A069337, 16 X n A069338, 17 X n A069339, 18 X n A069340, 19 X n A069341, 20 X n A069342, n X n A069343, n X n symmetric A069344.

Sequence in context: A322745 A189654 A163009 * A156175 A031760 A204568

Adjacent sequences: A069328 A069329 A069330 * A069332 A069333 A069334

Keyword

nonn

Author

R. H. Hardin, Mar 16 2002

Extensions

a(7)-a(13) from Sean A. Irvine, Apr 27 2024

Status

approved